In any proceeding to establish paternity, the court may, on its own motion, or shall, on a timely request of a party, after notice and hearing, require the child, the mother, and the alleged father to submit to genetic testing to be performed on blood or any other appropriate tissue. Failure to comply with such requirement for genetic testing shall constitute contempt and may be dealt with in the same manner as other contempts. If genetic testing is required, the court shall direct that inherited characteristics be determined by appropriate testing procedures and shall appoint an expert in genetic testing and qualified as an examiner of genetic markers to analyze and interpret the results and to report to the court. The court shall determine the number of experts required. In any proceeding to establish paternity, the Director of Health and Human Services, county attorneys, and authorized attorneys have the authority to require the child, the mother, and the alleged father to submit to genetic testing to be performed on blood or any other appropriate tissue. For purposes of sections 43-1414 to 43-1418, an expert in genetic testing means a person who has formal doctoral training or postdoctoral training in human genetics.